What Is a Cryptocurrency Exchange? How to Choose One and Which Have Failed in the Past?

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Cryptocurrency has evolved from a niche digital experiment into a globally recognized asset class. With the U.S. approving its first spot Bitcoin ETF in 2025, institutional and retail interest in digital assets continues to grow. For most investors, the easiest way to enter this market is through a cryptocurrency exchange—a platform that functions much like a stockbroker or bank but for digital currencies.

This article explores what cryptocurrency exchanges are, how to evaluate them, which ones are most trusted globally, and crucially, which major platforms have failed in the past—and why. Whether you're a beginner or refining your strategy, understanding these fundamentals is essential for safe and informed investing.

Understanding Cryptocurrency Exchanges

Traditional money such as the U.S. dollar, euro, or Japanese yen is known as fiat currency. In contrast, cryptocurrencies—like Bitcoin (BTC), Ethereum (ETH), and Tether (USDT)—are decentralized digital assets secured by cryptography.

There are thousands of cryptocurrencies today, but not all are legitimate. Some are scams or lack real-world utility. This makes choosing a reliable crypto exchange critical. These platforms allow users to buy, sell, and trade cryptocurrencies securely—acting as intermediaries between buyers and sellers.

To assess an exchange’s size and credibility, websites like CoinMarketCap and CoinGecko provide real-time data on trading volumes, supported coins, and liquidity. However, high rankings don’t guarantee safety. As history shows, even the largest exchanges can fail.

Top Global Cryptocurrency Exchanges in 2025

While hundreds of exchanges exist worldwide, only a few dominate in terms of volume, security, and user trust. Below is an overview of leading platforms used by investors across regions—including those popular among Taiwanese users.

1. Binance – The World’s Largest Exchange

Founded in 2017, Binance remains the largest cryptocurrency exchange globally by trading volume. Despite legal challenges involving its founder Changpeng Zhao (CZ), including a brief U.S. prison sentence in 2024, Binance continues to lead with:

Its extensive product suite includes spot trading, futures, staking, lending, and more. While regulated scrutiny persists, Binance's scale and functionality make it a go-to choice for both new and experienced traders.

👉 Discover how easy it is to start trading on a top-tier platform.

2. Coinbase – The Nasdaq-Listed U.S. Exchange

Launched in 2012, Coinbase became the first major crypto exchange to go public when it listed on Nasdaq in 2021 under the ticker COIN. Regulated and compliant with U.S. financial laws, Coinbase offers strong security and transparency.

However, due to strict regulations:

Still, for investors prioritizing regulatory compliance and ease of use, especially in North America, Coinbase stands out as a trusted option.

3. OKX – Innovation-Focused Global Platform

Originally known as Huobi OTC, OKX was rebranded and expanded internationally after relocating from Beijing due to China’s crypto ban. Now headquartered in Seychelles with offices in Dubai, Singapore, and Silicon Valley, OKX serves users worldwide.

Key strengths include:

OKX emphasizes innovation and performance, appealing to active traders seeking diverse financial instruments.

👉 See what sets leading exchanges apart in speed, tools, and asset variety.

4. Bybit – Leader in Derivatives Trading

Based in Dubai and launched in 2018, Bybit has carved a niche in the derivatives market. It ranks second globally in futures volume—just behind Binance.

Features include:

Bybit’s interface caters well to intermediate and advanced traders focused on leverage and hedging strategies.

5. Kraken – Veteran U.S.-Based Exchange

Established in 2011, Kraken is one of the oldest U.S.-based exchanges still operating. Known for robust security practices and transparent audits, Kraken supports a wide range of coins and offers staking, futures, and OTC services.

Although less flashy than newer platforms, Kraken maintains a loyal user base due to its long-standing reputation and compliance focus.

6. Gate.io – The "Open Sesame" Exchange

Often nicknamed “Open Sesame,” Gate.io, founded in 2013, supports over 2,150 cryptocurrencies, making it one of the most diverse exchanges by listing count.

While variety can be beneficial, many listed tokens carry high risk or low liquidity. Investors should prioritize quality over quantity when using such platforms.

7. HTX (Formerly Huobi) – Rebranded After Leadership Change

Originally founded in China in 2013 and later listed in Hong Kong (stock code: 1611), HTX (formerly Huobi) underwent major restructuring in 2022 under new leadership led by Justin Sun. The rebranding aimed to restore trust after years of operational issues.

Today, HTX remains active but faces stiff competition from more agile rivals.

8. Bitfinex ("Green Leaf") – Focused on Lending & Margin

Launched in 2012 and registered in the British Virgin Islands, Bitfinex is known among advanced users for margin financing and peer-to-peer lending. Many Taiwanese investors use it to lend fiat or stablecoins and earn interest via leveraged trading positions.

Despite past controversies related to Tether’s reserves, Bitfinex remains operational with enhanced transparency measures.

9. KuCoin – “People’s Exchange”

Dubbed the “People’s Exchange,” KuCoin launched in 2017 and supports both spot and options trading. It gained popularity for early access to emerging projects but operates without formal licensing in major jurisdictions—a factor some consider risky.

10. Upbit – South Korea’s Leading Platform

Operated by Dunamu Inc., Upbit launched in 2017 and dominates the South Korean market. It also serves users in Southeast Asia but has limited adoption among Taiwanese investors.

Regulatory compliance within South Korea ensures high standards, though access may require local verification.

Local Exchanges in Taiwan

Taiwan-based platforms like MAX, ACE, BitoPro, and XREX offer direct TWD deposits and withdrawals—a convenience for local users. However:

They work best for onboarding funds before transferring to more secure or feature-rich international exchanges.

Major Cryptocurrency Exchanges That Have Failed

Even large platforms aren't immune to collapse. Here are three infamous cases that shook the industry.

Mt. Gox – Once the Giant of Bitcoin

Launched in 2010 as a Magic: The Gathering card trading site, Mt. Gox quickly became the world’s largest Bitcoin exchange. By 2014, it handled over 70% of global BTC transactions.

Then came disaster:

Though partial repayments began in 2024, the incident remains a cautionary tale about centralized custody risks.

QuadrigaCX – The CEO Who “Died” With the Keys

Canada’s QuadrigaCX collapsed in 2019 when founder Gerald Cotten died unexpectedly while traveling in India. He alone held access to cold wallets containing around $190 million in user funds, which became inaccessible.

Netflix later released a documentary titled Don’t Trust Anyone: The Crypto Heist, raising suspicions that Cotten faked his death—a theory never proven but widely debated.

FTX – The Fall of a Crypto Titan

Once valued at $32 billion, FTX, founded by Sam Bankman-Fried (SBF), collapsed spectacularly in November 2022 after reports revealed massive financial mismanagement.

Key events:

Dubbed “one of America’s biggest financial frauds,” the FTX crash eroded trust across the industry.

How to Choose a Safe Cryptocurrency Exchange

When selecting an exchange, consider these factors:

👉 Learn how top platforms protect your assets while maximizing trading efficiency.

Frequently Asked Questions (FAQ)

Q: Are cryptocurrency exchanges safe?
A: While top-tier exchanges implement strong security protocols, no platform is completely risk-free. Always enable 2FA and avoid keeping large holdings on any exchange.

Q: Can a crypto exchange steal my money?
A: Yes—if poorly regulated or operated maliciously. Historical failures like Mt. Gox and FTX show that even big names can defraud users or mismanage funds.

Q: Should I use a local or international exchange?
A: Use local exchanges (like MAX or BitoPro) for easy TWD deposits, but transfer funds to reputable global platforms or personal wallets afterward.

Q: What happened to Huobi? Is it still safe?
A: Huobi rebranded to HTX after ownership changes in 2022. While functional, it faces ongoing scrutiny; diversifying holdings is advised.

Q: How do I check an exchange’s credibility?
A: Review its audit reports (e.g., Proof of Reserves), regulatory licenses, user reviews, and uptime history via CoinGecko or CoinMarketCap.

Q: Is Binance still trustworthy after CZ’s legal issues?
A: Despite regulatory pressure, Binance remains operational with improved compliance efforts. However, users should remain cautious and monitor developments closely.

Final Thoughts

Choosing the right cryptocurrency exchange is one of the most important decisions you’ll make as an investor. While platforms like Binance, Coinbase, OKX, and Kraken lead in trust and functionality, history reminds us that even giants can fall.

Always prioritize security over convenience. Diversify where you hold your assets—use exchanges for trading, not long-term storage. And stay informed: regulations evolve, technologies improve, and new risks emerge constantly.

The future of finance is digital—but your safety depends on smart choices today.